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Substitute in Irish (ionadach): Meaning, Forms, Examples

Other uses of ‘ionadach’: representative · vicarious

The Irish for substitute is ionadach: múinteoir ionadach, a substitute teacher.
Updated October 2026Report a mistake

How to say “substitute” in Irish

Irish:
ionadach
English:
substitute, representative, vicarious
Word type:
adjective
More substitute:
níos ionadaí
Most substitute:
is ionadaí
Plural:
ionadacha
Pronunciation:
“UN-ah-dakh”  /ˈʊnəd̪ˠəx/

What does “ionadach” mean?

“Ionadach” has three alternative meanings. The most common comes first.

substitute
Taking the place of another person or thing, acting in place of someone.Also: acting, deputy, replacement, stand-in.
2 other meanings: representative or vicarious
2representative
Standing for or representing others, as in a representative body or sample.Also: proxy.
3vicarious
Experienced or done on behalf of another person.

“Ionadach” after a noun

An Irish adjective comes after its noun. Here is ionadach after múinteoir (teacher, masculine), after foireann (team, feminine) and after a plural.

after a masculine nounmúinteoir ionadacha substitute teacher
after a feminine nounfoireann ionadacha substitute team
after a plural nounmúinteoirí ionadachasubstitute teachers

séimhiú (the h) the ending

plural
múinteoiríteachers
+
ionadachasubstitute, plural
=
múinteoirí ionadachasubstitute teachers

With a plural noun the adjective takes its plural form, ionadacha.

More substitute, most substitute, very substitute

níosmore
+
ionadaísubstitute
=
níos ionadaímore substitute
ismost
+
ionadaísubstitute
=
is ionadaímost substitute

Tá an sampla seo níos ionadaí ná an ceann eile. This sample is more representative than the other one.

more substituteníos ionadaíin the past tense: ní b'ionadaí
most substituteis ionadaíin the past tense: ab ionadaí
as substitute aschomh hionadach lechomh puts an h before a vowel
very substitutean-ionadachan- lenites, except d, t and s
too substituteró-ionadachró- lenites

“Ionadach” in a sentence: Irish examples

With a masculine noun, a feminine noun, a plural, a comparison and on its own.

Tá múinteoir ionadach againn inniu.
We have a substitute teacher today.
Tháinig foireann ionadach isteach sa dara leath.
A substitute team came on in the second half.
Bhí imreoirí ionadacha ar an mbinse.
There were substitute players on the bench.
Tá an sampla seo níos ionadaí ná an ceann eile.
This sample is more representative than the other one.
Níl an grúpa sin ionadach ar chor ar bith.
That group is not representative at all.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Substitute in Irish: frequently asked questions

What is the Irish for substitute?

The Irish for substitute is ionadach (pronounced “UN-ah-dakh”). It comes after the noun: múinteoir ionadach, a substitute teacher; foireann ionadach, a substitute team.

How do you say more substitute and most substitute in Irish?

níos ionadaí is more substitute and is ionadaí is most substitute. In the past tense they become ní b'ionadaí and ab ionadaí.

What is the plural of ionadach?

With a plural noun ionadach becomes ionadacha: múinteoirí ionadacha, foirne ionadacha.

How do you say very substitute in Irish?

an-ionadach. Too substitute is ró-ionadach, and as substitute as is chomh hionadach le.

Does ionadach have more than one meaning?

Yes. Ionadach can mean substitute, representative or vicarious, depending on context; the first is the most common.

How is 'ionadach' related to 'ionadaí'?

The noun 'ionadaí' means a representative or substitute person, while 'ionadach' is the adjective, as in 'múinteoir ionadach' (substitute teacher).

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